This telephone is made of stainless steel material , anti-corrosion, anti-oxidation, All surfaces are laser cut or directly molded for perfect shape. Simple to install through the tamper screws.All the telephone have security screws to strengthen the housing. The grommet of bottom provides stronger security for handset armoured cord. The panel have a windows instruction card which could write something to show.Equipped with tamper resistant security screws for added strength and durability.The cable entrance is on the back of the phone to prevent from artificial damage.Full zinc alloy keypad with Volume control button which could adjust the volume in the call. Several versions are available, color customized，with keypad, without keypad and on request with additional function buttons. Telephone parts is produced by self-made , every parts like keypad, cradle, handset could be customized.The big size vandal proof telephone is popular for jails, hospitals, health center,guard room,platforms, airports, control rooms, plant, gate and entryways, PREA phone,or waiting rooms etc.

Item	Technical data
Power Supply	Telephone Line Powered
Voltage	24--65 VDC
Standby Work Current	≤1mA
Frequency Response	250～3000 Hz
Ringer Volume	>85dB(A)
Corrosion Grade	WF1
Ambient Temperature	-40～+70℃
Anti-vandalism Level	IK10
Atmospheric Pressure	80～110KPa
Relative Humidity	≤95%
Weight	7kg
Installation	Wall-mounted

1.Standard Analogue phone. Phone line powered. 2.304 stainless steel material shell, high mechanical strength and strong impact resistance. 3.Vandal resistant handset with Internal steel lanyard and grommet provides added security for handset cord. 4.Zinc alloy keypad with volume control button. 5.Magnetic hook switch with reed switch. 6.Optional noise-canceling microphone available 7.Wall mounted, Simple installation. 8.Weather proof protection IP54. 9.Connection: RJ11 screw terminal pair cable. 10.Multiple color available. 11.Self-made telephone spare part available. 12.CE, FCC, RoHS, ISO9001 compliant .If you have any color request, let us know the Pantone color No.85% spare parts are produced by our own factory and with matched test machines, we could confirm the function and standard directly.